Campaign - Power Door Lock Switch Replacement: Overview
88chevy12Number: 87-287-10
Section: 10
Date: May, 1988
Subject: POWER DOOR LOCK SWITCHES
Model and Year: 1986-87 S/T TRUCKS WITH POWER
DOOR LOCK OPTION (AU3)
TO: ALL CHEVROLET DEALERS
General Motors has determined that some power door lock failures have occurred on 1986-87 S/T model trucks. The failure modes include: inoperative switches, intermittent locking and unlocking while driving or parked, actuator sticking and actuator popping out of switch. In addition to durability improvement in the new switches, there is an appearance change which necessitates changing both the right and left door lock switches when one requires replacement.